1. Apply a vacuum and check the passage of air by blowing through one side of the EGR passage.
  2. Vacuum
    Passage of air
    5.3 kPa or less
    Air is not blown out
    27 kPa or more
    Air is blown out

  1. Replace the gasket, and tighten to the specified torque.
  2. Tightening torque: 20 ± 2 N·m
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